CVE & CISA-KEV Catalog

CVE-2023-27585

HIGHEPSS 81th pctl
7.5
CVSS v3
NVD

Description

PJSIP is a free and open source multimedia communication library written in C. A buffer overflow vulnerability in versions 2.13 and prior affects applications that use PJSIP DNS resolver. It doesn't affect PJSIP users who do not utilise PJSIP DNS resolver. This vulnerability is related to CVE-2022-24793. The difference is that this issue is in parsing the query record `parse_query()`, while the issue in CVE-2022-24793 is in `parse_rr()`. A patch is available as commit `d1c5e4d` in the `master` branch. A workaround is to disable DNS resolution in PJSIP config (by setting `nameserver_count` to zero) or use an external resolver implementation instead.

CWE-120Classic Buffer OverflowCWE-122Heap-based Buffer Overflow

How to fix

Remediation Available
asteriskDebian
Fixed in:1:16.28.0~dfsg-0+deb11u3CVE-2023-27585
Fixed in:1:20.4.0~dfsg+~cs6.13.40431414-1CVE-2023-27585
jamiUbuntu
Fixed in:20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1USN-6422-1
Fixed in:20230206.0~ds1-5ubuntu0.1USN-6422-1
Fixed in:20230206.0~ds2-1.3ubuntu0.1USN-6422-2
jami-daemonUbuntu
Fixed in:20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1USN-6422-1
Fixed in:20230206.0~ds1-5ubuntu0.1USN-6422-1
Fixed in:20230206.0~ds2-1.3ubuntu0.1USN-6422-2
ringUbuntu
Fixed in:20180228.1.503da2b~ds1-1ubuntu0.1~esm1USN-6422-1
Fixed in:20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1USN-6422-1
Fixed in:20230206.0~ds1-5ubuntu0.1USN-6422-1
Fixed in:20230206.0~ds2-1.3ubuntu0.1USN-6422-2
ring-daemonUbuntu
Fixed in:20180228.1.503da2b~ds1-1ubuntu0.1~esm1USN-6422-1
Fixed in:20190215.1.f152c98~ds1-1+deb10u2build0.20.04.1USN-6422-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

2.33%probability of exploitation in 30 days
81stpercentile

Elevated risk: more likely to be exploited than 81% of all known CVEs.

References

Vendor Advisory1
Product1

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0195Medium6.8100%-Fix
CVE-2017-7269Critical9.8100%KEV-
CVE-2019-11043High8.799%KEV + RansomFix
CVE-2011-4862High10.095%-Fix
CVE-2007-5659High7.894%KEVFix
CVE-2022-3786High7.591%-Fix
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CVE-2023-27585 severity badge

Markdown

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-11-04.